.tree-leaf {
  position: relative;
}
.tree-leaf .tree-child-leaves {
  display: block;
  margin-left: 15px;
}
.tree-leaf .hidden {
  display: none;
  visibility: hidden;
}
.tree-leaf .tree-expanded {
  background: #ddd;
  border-radius: 3px;
  cursor: pointer;
  float: left;
  height: 10px;
  line-height: 10px;
  position: relative;
  text-align: center;
  top: 5px;
  width: 10px;
}
.tree-leaf .tree-expanded:hover {
  background: #aaa;
}
.tree-leaf .tree-leaf-text {
  cursor: pointer;
  float: left;
  margin-left: 5px;
}
.tree-leaf .tree-leaf-text:hover {
  color: #00f;
}
.tree-leaf .tree-leaf-content:after,
.tree-leaf .tree-leaf-content:before {
  content: " ";
  display: table;
}
.tree-leaf .tree-leaf-content:after {
  clear: both;
}
